<!doctype html>
<html>
<head>
  <meta charset="utf-8" />
  <title>axupimgs</title>
  <meta name="viewport" content="user-scalable=no, width=device-width, initial-scale=1.0, maximum-scale=1.0"/>
  <meta name="apple-mobile-web-app-capable" content="yes" />
  <meta name="apple-mobile-web-app-status-bar-style" content="black" />
  <meta name="format-detection" content="telephone=no">
  <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
  <style>
    html,body{height:100%;width:100%;margin:0;padding:0;background:#fff;}
    ul{margin:0;padding:0;list-style:none;}
    #wrap{padding:10px;}
    #topbar{padding:10px 0;border-bottom:1px solid #ccc;text-align:right;}
    #topbar button {margin:0;margin-left:5px;outline:none;padding: 4px 16px;box-sizing: border-box;
      display:inline-block;border:none;border-radius:3px;text-align:center;cursor:pointer;
      font-size:14px;line-height:1.5;background-color:#f0f0f0;color:#223;
    }
    #topbar button.primary{background-color:#3d97d4;color:#fff;}
    #topbar button:hover{background-color:#207ab7;color:#fff;}
    #topbar button.removeall{float:left}
    #file_list {display:grid;grid-gap:10px;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));padding-top:10px;}
    #file_list:empty:after{content:'可以直接拖拽文件到这里';color:#777;font-size:0.8em;}
    #file_list li{position:relative;display:block;vertical-align:top;padding:5px 5px;border-radius:5px;}
    #file_list li.up-over {}
    #file_list li.up-now {}
    #file_list li.up-now:after{content:'';position:absolute;top:0;left:0;display:block;width:100%;height:100%;background:rgba(255,255,255,0.8) url(loading.gif) center center no-repeat;border-radius:5px;z-index:999;}
    #file_list li:hover{background-color:#ddd;}
    #file_list li .picbox {display:flex;flex:0 0 auto;justify-content:center;overflow:hidden;position:relative;width:100%;padding-top:100%;align-items:center;}
    #file_list li .picbox img {display:block;max-width:100%;max-height:100%;position:absolute;
      top:50%;left:50%;transform:translateX(-50%) translateY(-50%);}
    #file_list li.up-over .picbox:after{content:url('data:image/svg+xml;%20charset=utf8,%3Csvg%20viewBox%3D%220%200%201024%201024%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%2224%22%20height%3D%2224%22%3E%3Cpath%20d%3D%22M512%200C229.376%200%200%20229.376%200%20512s229.376%20512%20512%20512%20512-229.376%20512-512S794.624%200%20512%200z%22%20fill%3D%22%234AC711%22%3E%3C%2Fpath%3E%3Cpath%20d%3D%22M855.552%20394.752l-358.4%20358.4a50.9952%2050.9952%200%200%201-72.192%200l-204.8-204.8c-18.944-19.968-18.944-51.2%200-71.168a50.5344%2050.5344%200%200%201%2072.192-1.024L460.8%20644.608l322.048-322.048c19.968-18.944%2051.2-18.944%2071.168%200%2020.48%2019.456%2020.992%2051.712%201.536%2072.192z%22%20fill%3D%22%23FFFFFF%22%3E%3C%2Fpath%3E%3C%2Fsvg%3E');position:absolute;bottom:2px;right:2px;z-index:9;}
    #file_list li .tools {display:none;position:absolute;bottom:5px;right:5px;z-index:99;}
    #file_list li:hover .tools {display:block;}
    #file_list li .tools .remove{cursor:pointer;}
    #file_list li .tools .remove:after{content:url('data:image/svg+xml;%20charset=utf8,%3Csvg%20width=%2224%22%20height=%2224%22%20viewBox=%220%200%2024%2024%22%20xmlns=%22http://www.w3.org/2000/svg%22%3E%3Cpath%20d=%22M17%206h3a1%201%200%200%201%200%202h-1v11a3%203%200%200%201-3%203H8a3%203%200%200%201-3-3V8H4a1%201%200%201%201%200-2h3V5a3%203%200%200%201%203-3h4a3%203%200%200%201%203%203v1zm-2%200V5a1%201%200%200%200-1-1h-4a1%201%200%200%200-1%201v1h6zm2%202H7v11a1%201%200%200%200%201%201h8a1%201%200%200%200%201-1V8zm-8%203a1%201%200%200%201%202%200v6a1%201%200%200%201-2%200v-6zm4%200a1%201%200%200%201%202%200v6a1%201%200%200%201-2%200v-6z%22%3E%3C/path%3E%3C/svg%3E');}
    #file_list li .namebox {font-size:14px;line-height:20px;max-height:40px;overflow:hidden;padding:5px 10px;text-align:center;display:flex;justify-content:center;align-items:flex-start;}
    #file_list li .namebox span{word-break:break-all;vertical-align:top;}
  </style>

</head>
<body>
<div id="wrap">
  <div id="topbar"><button class="addfile primary">+ 添加文件</button><button class="upall primary">全部上传</button><button class="removeall">清空列表</button></div>
  <ul id="file_list"></ul>
</div>

<script>
  var editor=parent.tinymce.activeEditor;
  var axupimgs=parent.axupimgs;
  axupimgs.res = []; //存放本地文件的数组
  var blobInfo = {file:null}
  blobInfo.blob = function(){return this.file;}
  var upload_handler = axupimgs.images_upload_handler;
  var upload_base_path = axupimgs.images_upload_base_path;

  //为列表添加排序
  function reSort(){
    document.querySelectorAll('#file_list li').forEach((el,i)=>{
      el.setAttribute('data-num',i);
    });
  }

  function addList(files){
    var files_sum = files.length;
    var vDom = document.createDocumentFragment();
    for(let i=0;i<files_sum;i++){
      let file = files[i];
      let blobUrl = window.URL.createObjectURL(file)
      axupimgs.res.push({file:file,blobUrl:blobUrl,url:''});
      let li = document.createElement('li');
      li.setAttribute('class','up-no');
      li.setAttribute('data-time',file.lastModified);
      li.innerHTML='<div class="picbox"><img src="'+blobUrl+'"></div><div class="namebox"><span>'+file.name+'</span></div><div class="tools"><a class="remove"></a></div>';
      vDom.appendChild(li);
    }
    document.querySelector('#file_list').appendChild(vDom);
    //reSort();
  }


  //清空列表
  document.querySelector('#topbar .removeall').addEventListener('click',()=>{
    axupimgs.res=[]
    document.querySelectorAll('#file_list li').forEach((el,i)=>{
      el.parentNode.removeChild(el)
    });
  });
  //拖拽添加
  document.addEventListener('dragover', (e)=>{
    e.stopPropagation();
    e.preventDefault();
    e.dataTransfer.dropEffect = 'copy';
  });
  document.addEventListener('drop', (e)=>{
    e.stopPropagation();
    e.preventDefault();
    if(!e.dataTransfer.files){return false;}
    var dropfiles = e.dataTransfer.files;
    if(!(dropfiles.length>0)){return false;}
    var exts=axupimgs.axupimgs_filetype.replace(/(\s)+/g,'').toLowerCase().split(',');
    var files=[];
    for( let file of dropfiles ){
      ext = file.name.split('.');
      ext = '.'+ext[ext.length-1];
      for(let s of exts){
        if(s==ext){
          files.push(file);
          break;
        }
      }
    }
    if(files.length>0){ addList(files) }
  });

  //添加文件
  document.querySelector('#topbar .addfile').addEventListener('click',()=>{
    var input = document.createElement('input');
    input.setAttribute('type', 'file');
    input.setAttribute('multiple', 'multiple');
    input.setAttribute('accept', axupimgs.axupimgs_filetype);
    input.click();
    input.onchange = function() {
      var files = this.files;
      addList(files);
    }
  });

  var file_i = 0;

  function upAllFiles(n){
    var len = axupimgs.res.length;
    file_i = n;
    if(len == n){
      file_i=0;
      document.querySelector('#topbar .upall').innerText='全部上传';
      return true;
    }
    if( axupimgs.res[n].url!='' ){
      n++;
      upAllFiles(n)
    }else{
      blobInfo.file=axupimgs.res[n].file;
      upload_handler(blobInfo,function(url){
        if(upload_base_path){

          if(upload_base_path.slice(-1)=='/' && url.substr(0,1)=='/' ){
            url = upload_base_path + url.slice(1);
          }else if(upload_base_path.slice(-1)!='/' && url.substr(0,1)!='/' ){
            url = upload_base_path + '/' + url;
          }else{
            url = upload_base_path + url;
          }
        }
        axupimgs.res[file_i].url = url;
        filename = url.split('/').pop();
        var li = document.querySelectorAll('#file_list li')[file_i];
        li.setAttribute('class','up-over');
        li.querySelector('.namebox span').innerText = filename;
        n++
        upAllFiles(n);
      },function(err){
        document.querySelector('#topbar .upall').innerText='全部上传';
        document.querySelectorAll('#file_list li.up-now').forEach((el,i)=>{
          el.setAttribute('class','up-no');
        });
        alert(err);
      });
    }

  }

  document.querySelector('#topbar .upall').addEventListener('click',(e)=>{
    if(e.target.innerText!='全部上传'){return false;}
    if(axupimgs.res.length>0){
      document.querySelectorAll('#file_list li.up-no').forEach((el,i)=>{
        el.classList ? el.classList.add('up-now') : el.className+=' up-now';
      });
      e.target.innerText='上传中...';
      upAllFiles(0);
    }
  });

  var observ_flist = new MutationObserver( (muList,observe)=>{
    if(muList[0].addedNodes.length>0){
      muList[0].addedNodes.forEach((el)=>{
        el.querySelector('.remove').addEventListener('click',(e)=>{
          var li = e.target.parentNode.parentNode;
          var n = li.getAttribute('data-num');
          var el = document.querySelectorAll('#file_list li')[n];
          el.parentNode.removeChild(el);
          axupimgs.res.splice(n,1);
        });
      });
    }
    reSort();
  });
  observ_flist.observe(document.querySelector('#file_list'),{childList:true});

</script>
</body>
</html>
